The R5105N311C-TR-JE is a voltage detector (voltage supervisor) IC manufactured by Ricoh. This device is designed to monitor the supply voltage of electronic circuits and generate a reset signal when the voltage falls below a certain threshold. It is commonly used in microcontrollers, memory devices, and other sensitive electronic components to prevent malfunctions caused by undervoltage conditions. This ensures the reliable operation of electronic systems.

Applications:

• Microcontroller Systems: Monitors supply voltage and generates a reset signal for microcontrollers.
• Memory Devices: Protects memory devices from data corruption due to undervoltage conditions.
• Power Management Circuits: Used in power management systems for voltage monitoring and protection.
• Battery-Powered Devices: Extends battery life by preventing operation at low voltage levels.
• Real-Time Clocks (RTC): Ensures reliable operation of RTC devices by monitoring supply voltage.
• Industrial Control Systems: Provides voltage supervision for sensitive electronic components in industrial environments.

Features:

• Accurate Voltage Detection: Provides precise voltage monitoring with high accuracy.
• Low Current Consumption: Minimizes power consumption in battery-powered applications.
• Open Drain Output: Offers flexible interface options with various logic circuits.
• Small Package Size: Available in compact packages for space-constrained applications.
• Hysteresis: Prevents oscillation during voltage transitions.
• RoHS Compliant: Complies with Restriction of Hazardous Substances directive.

Benefits:

• Enhanced System Reliability: Protects electronic components from malfunctions due to undervoltage conditions.
• Extended Battery Life: Low current consumption minimizes power drain.
• Versatile Applications: Suitable for a wide range of voltage monitoring applications.
• Simplified Design: Requires minimal external components for operation.
• Compact Footprint: Small package size allows for efficient PCB layout.
• Cost-Effective Solution: Provides reliable voltage supervision at a competitive price.

Technical Specifications:

The R5105N311C-TR-JE features a detection voltage of 3.1V. The supply voltage range is typically 1.6V to 5.5V. The current consumption is typically less than 1 μA. The output type is open drain. The operating temperature range is typically -40°C to +85°C. It is available in a SOT-23-5 package. The hysteresis voltage is designed to prevent false resets.

This voltage detector offers a reliable and efficient solution for monitoring supply voltages in electronic circuits, providing enhanced system reliability and protection against undervoltage conditions.